Unit B Chapter 2 Living Things Interact Review

A single organism living in an environment is? Individual

All the populations of organisms living together in an environment are? Communities

Some animals eat off of more than one consumer level. True True or False

Living things that must eat to gain energy are? Consumers

What shows the relationship between many different food chains in one ecosystem? Food Web

Human activity can cause a decline in populations of organisms. True True or False

What shows how consumers in an ecosystem are connected to each other based on what they eat? Food Chain

Consumers that break down decaying tissue. Decomposer

Instinctive behaviors include building shelter, finding mates, and hunting. True True or False

A non-native organism Exotic

Hurricanes and floods are examples of natural causes for population decline. True True or False

A community and its physical environment would be known as an ___________. ecosystem

Only 10% of the energy from one level of the energy pyramid will be passed on to the next level. True True or False

A long term relationship between different kinds of organisms. Symbiosis

Place in an ecosystem where each population lives. Habitat

In a relationship of mutualism, two organisms work together while only one benefits. False True or False BOTH organisms benefit in mutualism!

Organisms that produce their own food through photosynthesis. Producers

Pesticides are a natural cause for population decline. False True or False

Individuals of the same kind living in the same environment. Population

It is not possible for animals to eat from the same food source without competing. False True or False